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Cell Biology

A collection of videos and experiments that are suitable for Biology.

The major mutations found in the living world.
Starts with an analogy comparing the information in DNA with the information in a recipe. Changes in the DNA can result in changes to the protein, like changes in the recipe can result in changes in the food.
Describes the three major point mutations; substitutions, deletions and insertions.
Also describes several chromosomal mutations.
The Immune System
How your body protects itself from invading viruses and bacteria?
Describes the nonspecific immune responses of skin and inflammation.
Explains how we use antibodies to disrupt the function of antigens and mark them for destruction.
Explains both the homoral and cell-mediated immune response highlighting the importance of B and T lymphocytes.
Describes the process of long term immunity. Photosynthesis
Explains the process of photosynthesis by which plants and algae can convert carbon dioxide into useable sugar.
Begins with a brief description of the chloroplast.
Describes the major pigments in a plant (like chlorophyll a and b).
Describes both the light reaction and the Calvin cycle.
Discussion of photorespiration and strategies for avoiding this problem evolved in CAM and C4 plants. Organelle Movement on Microtubules
This video demonstrates the movement of organelles on microtubules.

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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